Don't clobber initial transform with SetMatrix.
BUG=skia:2378
R=reed@google.com, mtklein@google.com, robertphillips@google.com
Author: mtklein@chromium.org
Review URL: https://codereview.chromium.org/290883004
git-svn-id: http://skia.googlecode.com/svn/trunk@14778 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tests/RecordTestUtils.h b/tests/RecordTestUtils.h
new file mode 100644
index 0000000..db3f02d
--- /dev/null
+++ b/tests/RecordTestUtils.h
@@ -0,0 +1,31 @@
+#ifndef RecordTestUtils_DEFINED
+#define RecordTestUtils_DEFINED
+
+#include "SkRecord.h"
+#include "SkRecords.h"
+
+// If the command we're reading is a U, set ptr to it, otherwise set it to NULL.
+template <typename U>
+struct ReadAs {
+ ReadAs() : ptr(NULL), type(SkRecords::Type(~0)) {}
+
+ const U* ptr;
+ SkRecords::Type type;
+
+ void operator()(const U& r) { ptr = &r; type = U::kType; }
+
+ template <typename T>
+ void operator()(const T&) { type = U::kType; }
+};
+
+// Assert that the ith command in record is of type T, and return it.
+template <typename T>
+static const T* assert_type(skiatest::Reporter* r, const SkRecord& record, unsigned index) {
+ ReadAs<T> reader;
+ record.visit<void>(index, reader);
+ REPORTER_ASSERT(r, T::kType == reader.type);
+ REPORTER_ASSERT(r, NULL != reader.ptr);
+ return reader.ptr;
+}
+
+#endif//RecordTestUtils_DEFINED